scholarly journals Development of a Novel Launch System Microwave Rocket Powered by Millimeter-Wave Discharge

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Kimiya Komurasaki ◽  
Kuniyoshi Tabata
Keyword(s):  
Millimeter Wave ◽  
Cost Reduction ◽  
Wave Beam ◽  
Design History ◽  
Filamentary Structure ◽  
History Of Development ◽  
Quarter Wavelength ◽  
Atmospheric Discharge ◽  
History Of ◽  
Wave Discharge

This paper presents the state of art of Microwave Rocket development and related researches on atmospheric discharge in a high-power millimeter-wave beam. Its operational mechanisms, thruster design, history of development, and flight path and cost analyses are introduced along with millimeter-wave discharge observations and numerical simulations. A thruster model of 126 g weight with no on-board propellant was launched to 1.2 m altitude using a 1 MW class gyrotron. A flight analysis that shows 77% cost reduction is possible using Microwave Rocket as the first stage of H-IIB heavy. A millimeter-wave discharge with unique plasma structure such as a quarter-wavelength microstructure and a comb-shaped filamentary structure was observed and reproduced by a two-dimensional numerical model.

Global Development

2019 ◽  
Author(s):  
Sara Lorenzini
Keyword(s):  
Cold War ◽  
International Organizations ◽  
Development Aid ◽  
Global Perspective ◽  
Modern World ◽  
Development Projects ◽  
Berlin Wall ◽  
History Of Development ◽  
History Of ◽  
The Cold War

In the Cold War, “development” was a catchphrase that came to signify progress, modernity, and economic growth. Development aid was closely aligned with the security concerns of the great powers, for whom infrastructure and development projects were ideological tools for conquering hearts and minds around the globe, from Europe and Africa to Asia and Latin America. This book provides a global history of development, drawing on a wealth of archival evidence to offer a panoramic and multifaceted portrait of a Cold War phenomenon that transformed the modern world. Taking readers from the aftermath of the Second World War to the tearing down of the Berlin Wall, the book shows how development projects altered local realities, transnational interactions, and even ideas about development itself. The book shines new light on the international organizations behind these projects—examining their strategies and priorities and assessing the actual results on the ground—and it also gives voice to the recipients of development aid. It shows how the Cold War shaped the global ambitions of development on both sides of the Iron Curtain, and how international organizations promoted an unrealistically harmonious vision of development that did not reflect local and international differences. The book presents a global perspective on Cold War development, demonstrating how its impacts are still being felt today.

Assessment criteria for aggregate social welfare

2020 ◽  
Vol 19 (12) ◽  
pp. 2358-2371
Author(s):  
S.A. Moskal'onov
Keyword(s):  
Social Welfare ◽  
Mathematical Analysis ◽  
Exchange Economy ◽  
Assessment Criteria ◽  
Impossibility Theorem ◽  
New Approaches ◽  
History Of Development ◽  
Arrow's Impossibility Theorem ◽  
History Of

Subject. The article addresses the history of development and provides the criticism of existing criteria for aggregate social welfare (on the simple exchange economy (the Edgeworth box) case). Objectives. The purpose is to develop a unique classification of criteria to assess the aggregate social welfare. Methods. The study draws on methods of logical and mathematical analysis. Results. The paper considers strong, strict and weak versions of the Pareto, Kaldor, Hicks, Scitovsky, and Samuelson criteria, introduces the notion of equivalence and constructs orderings by Pareto, Kaldor, Hicks, Scitovsky, and Samuelson. The Pareto and Samuelson's criteria are transitive, however, not complete. The Kaldor, Hicks, Scitovsky citeria are not transitive in the general case. Conclusions. The lack of an ideal social welfare criterion is the consequence of the Arrow’s Impossibility Theorem, and of the group of impossibility theorems in economics. It is necessary to develop new approaches to the assessment of aggregate welfare.

Harsdörffers Geschirr

2019 ◽  
Vol 10 (1) ◽  
pp. 23-37
Author(s):  
Natalie Binczek
Keyword(s):  
Design History ◽  
History Of ◽  
The Difference

Der deutsche Barockdichter Georg Philipp Harsdörffer skizziert eine Theorie der Emblematik, die vor allem dessen Anwendungsvielfalt hervorhebt. Er hebt dabei besonders den Unterschied zwischen buchinterner und buchexterner Verwendung auf, indem er sich nicht nur für die Aufnahme der Embleme in Büchern, sondern auch auf Geschirr und Tapeten ausspricht. Der Beitrag liest Harsdörffers extensive Überlegungen nicht nur als Beiträge zur Theorie und Geschichte der Embleme als ›Sinn-Bilder‹, sondern auch als Beitrag zur Designgeschichte. German Baroque poet Georg Philipp Harsdörffer delineates a theory of emblematics that clearly sets itself apart from other contemporary theories, especially by its versatility. In particular, the author negates the difference between internal and external usage of emblems in books not only by promoting the incorporation of emblems into printed works but also by supporting their depiction on dishes and tapestries. This article strives to read Harsdörffer’s extensive thoughts on the matter of emblems not simply as another work on the theory and history of emblematics but rather as a contribution to design history as well

HISTORY OF DEVELOPMENT OF SELF-DEFENSE IN RUSSIA

2019 ◽  
Vol 61 (4) ◽  
pp. 37-42
Author(s):  
M.O. Nagornaya ◽  
◽  
S.V. Nebratenko ◽  
Keyword(s):  
History Of Development ◽  
Self Defense ◽  
History Of
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